From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
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Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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The light hitting the earth right now is 30 thousand years old.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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